/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2001-2002 Vivid Solutions Inc.
 *
 * This is free software; you can redistribute and/or modify it under
 * the terms of the GNU Lesser General Public Licence as published
 * by the Free Software Foundation.
 * See the COPYING file for more information.
 *
 **********************************************************************
 *
 * Last port: operation/distance/ConnectedElementPointFilter.java rev. 1.7 (JTS-1.10)
 *
 **********************************************************************/

#include <geos/operation/distance/ConnectedElementPointFilter.h>
#include <geos/geom/Geometry.h>
#include <geos/geom/Point.h>
#include <geos/geom/LineString.h>
#include <geos/geom/Polygon.h>

#include <vector>
#include <typeinfo>


using namespace geos::geom;

namespace geos {
namespace operation { // geos.operation
namespace distance { // geos.operation.distance

/**
 * Returns a list containing a Coordinate from each Polygon, LineString, and Point
 * found inside the specified geometry. Thus, if the specified geometry is
 * not a GeometryCollection, an empty list will be returned.
 */
std::vector<const Coordinate*>*
ConnectedElementPointFilter::getCoordinates(const Geometry* geom)
{
    std::vector<const Coordinate*>* points = new std::vector<const Coordinate*>();
    ConnectedElementPointFilter c(points);
    geom->apply_ro(&c);
    return points;
}

void
ConnectedElementPointFilter::filter_ro(const Geometry* geom)
{
    if((typeid(*geom) == typeid(Point)) ||
            (typeid(*geom) == typeid(LineString)) ||
            (typeid(*geom) == typeid(Polygon))) {
        pts->push_back(geom->getCoordinate());
    }
}

} // namespace geos.operation.distance
} // namespace geos.operation
} // namespace geos
